No one answer- since the need for a license is determined by state laws- and there are 50 different states- 50 different sets of laws- and that is just in the US. Other nations have other laws.
You don't need a gun license if you are 25 but if your under 25 you do need a gun license
You never need a license to have an Airsoft gun.
It depends on your definition of "expert." Many people think you can run tak one gun class and suddenly be deemed an expert. Most people that are considered experts have studied for years, and may possibly have a degree in ballistics.
To get a gun license you would need to go into a gun store in the town you live in and ask for the information you need.
yes
No.
It depends on several factors; Where you are located and exactly what you mean by "gun license." Do you mean a license to carry a gun? A license to purchase a gun? A license to build guns?
. Do a spear gun need a licence in philippins?
You need to tell us more about the "gun license" and for what area. There are many different gun licenses.
No
No.
No.